Aon plc (AON) stock
AONNYSEInsurance Agents, Brokers & ServiceFiscal year ends December 31
Financials through Q2 FY2026, quarter ended Jun 30, 2026Last filing: 10-Q on Oct 28, 2026Score 21/3033% below fair value
$321.67+0.03 (+0.01%)
Close on Oct 30, 2026Market cap $68.23BP/E 17.7Yield 0.90%
Price history
Aon share prices for every trading day, newest first. Adjusted for stock splits, not for dividends.
Close, Oct 30, 2026
$321.67
+0.01% on the day
52-week range
$266.33 – $382.34
-15.9% from the high
Change over 52 weeks
-2.0%
From $328.19 on Oct 30, 2025
Average volume
1.61M
Shares a day, last 90 sessions
| Date | Open | High | Low | Close | Change | Volume |
|---|---|---|---|---|---|---|
| Oct 30, 2026 | $326.62 | $329.43 | $321.50 | $321.67 | +0.01% | 1,821,104 |
| Oct 29, 2026 | $317.59 | $323.57 | $313.94 | $321.64 | +1.88% | 1,998,823 |
| Oct 28, 2026 | $314.00 | $318.72 | $307.29 | $315.72 | +4.37% | 2,658,578 |
| Oct 27, 2026 | $297.27 | $303.71 | $295.52 | $302.50 | +0.15% | 2,891,078 |
| Oct 26, 2026 | $302.61 | $303.49 | $299.13 | $302.06 | -0.48% | 1,530,009 |
| Oct 23, 2026 | $305.01 | $307.67 | $301.76 | $303.52 | -1.07% | 1,108,596 |
| Oct 22, 2026 | $296.01 | $306.95 | $296.01 | $306.80 | +4.23% | 1,636,535 |
| Oct 21, 2026 | $296.58 | $297.00 | $293.32 | $294.35 | -0.80% | 1,009,715 |
| Oct 20, 2026 | $292.59 | $298.55 | $290.00 | $296.71 | +2.41% | 1,477,586 |
| Oct 19, 2026 | $289.03 | $291.91 | $287.18 | $289.74 | -0.96% | 1,521,731 |
| Oct 16, 2026 | $288.79 | $292.73 | $287.74 | $292.55 | +2.00% | 1,840,218 |
| Oct 15, 2026 | $279.85 | $288.47 | $279.85 | $286.80 | +4.16% | 2,331,033 |
| Oct 14, 2026 | $275.63 | $277.25 | $272.04 | $275.35 | +0.23% | 1,699,751 |
| Oct 13, 2026 | $275.99 | $277.62 | $272.39 | $274.71 | -0.03% | 1,453,729 |
| Oct 12, 2026 | $274.87 | $276.01 | $273.24 | $274.78 | +0.48% | 1,673,347 |
| Oct 9, 2026 | $276.63 | $277.49 | $272.83 | $273.47 | -1.32% | 1,911,620 |
| Oct 8, 2026 | $271.29 | $277.90 | $270.03 | $277.12 | +2.46% | 1,976,732 |
| Oct 7, 2026 | $275.07 | $275.31 | $269.72 | $270.47 | -1.28% | 1,541,419 |
| Oct 6, 2026 | $270.83 | $274.71 | $270.10 | $273.99 | +0.71% | 1,382,262 |
| Oct 5, 2026 | $267.59 | $272.37 | $266.33 | $272.05 | +0.96% | 1,366,035 |
| Oct 2, 2026 | $274.96 | $276.39 | $268.90 | $269.45 | -2.36% | 1,608,966 |
| Oct 1, 2026 | $277.48 | $279.49 | $274.81 | $275.95 | -0.30% | 2,009,654 |
| Sep 30, 2026 | $275.78 | $278.19 | $273.80 | $276.77 | +0.32% | 2,300,140 |
| Sep 29, 2026 | $269.91 | $276.97 | $269.02 | $275.90 | +1.40% | 1,987,947 |
| Sep 28, 2026 | $277.50 | $278.40 | $270.00 | $272.10 | -2.12% | 1,852,185 |
| Sep 25, 2026 | $277.00 | $280.98 | $276.52 | $277.99 | +0.69% | 1,642,564 |
| Sep 24, 2026 | $281.60 | $283.03 | $275.38 | $276.09 | -1.96% | 2,713,322 |
| Sep 23, 2026 | $284.67 | $286.80 | $281.18 | $281.60 | -1.57% | 1,794,910 |
| Sep 22, 2026 | $291.06 | $293.55 | $282.70 | $286.10 | -1.62% | 2,544,586 |
| Sep 21, 2026 | $297.01 | $297.87 | $290.70 | $290.82 | -1.63% | 1,936,410 |
| Sep 18, 2026 | $294.25 | $297.73 | $293.00 | $295.64 | -0.14% | 3,187,662 |
| Sep 17, 2026 | $299.54 | $302.12 | $295.78 | $296.05 | -1.50% | 3,273,225 |
| Sep 16, 2026 | $303.40 | $304.06 | $298.48 | $300.57 | -1.35% | 3,194,573 |
| Sep 15, 2026 | $311.60 | $311.98 | $304.59 | $304.67 | -2.21% | 1,799,178 |
| Sep 14, 2026 | $308.08 | $312.39 | $305.92 | $311.54 | +2.92% | 2,879,318 |
| Sep 11, 2026 | $310.85 | $311.89 | $302.44 | $302.69 | -1.65% | 2,238,051 |
| Sep 10, 2026 | $304.97 | $310.04 | $304.20 | $307.77 | +1.01% | 2,449,271 |
| Sep 9, 2026 | $313.45 | $315.67 | $303.59 | $304.69 | -3.51% | 2,266,675 |
| Sep 8, 2026 | $316.78 | $321.57 | $314.95 | $315.79 | -2.26% | 1,926,594 |
| Sep 4, 2026 | $328.18 | $328.84 | $321.49 | $323.09 | -1.20% | 1,467,973 |
| Sep 3, 2026 | $332.00 | $336.45 | $325.68 | $327.00 | -1.17% | 1,465,067 |
| Sep 2, 2026 | $327.70 | $331.60 | $324.79 | $330.88 | +1.40% | 2,189,341 |
| Sep 1, 2026 | $321.42 | $328.52 | $312.92 | $326.30 | +1.49% | 2,423,281 |
| Aug 31, 2026 | $340.00 | $343.26 | $320.21 | $321.52 | -9.53% | 2,434,130 |
| Aug 28, 2026 | $350.96 | $358.71 | $349.76 | $355.40 | +1.67% | 669,144 |
| Aug 27, 2026 | $350.51 | $352.88 | $348.03 | $349.56 | -1.25% | 688,508 |
| Aug 26, 2026 | $354.63 | $356.46 | $353.19 | $353.98 | -0.24% | 594,169 |
| Aug 25, 2026 | $357.00 | $360.30 | $354.14 | $354.83 | -1.19% | 616,317 |
| Aug 24, 2026 | $358.52 | $361.73 | $356.50 | $359.10 | +1.12% | 627,236 |
| Aug 21, 2026 | $352.39 | $356.86 | $350.57 | $355.11 | +0.90% | 747,031 |
| Aug 20, 2026 | $348.90 | $356.12 | $346.32 | $351.93 | +1.00% | 733,329 |
| Aug 19, 2026 | $344.23 | $352.84 | $341.75 | $348.43 | +1.52% | 615,901 |
| Aug 18, 2026 | $343.20 | $350.13 | $343.03 | $343.20 | -1.16% | 921,484 |
| Aug 17, 2026 | $354.00 | $355.27 | $346.50 | $347.22 | -2.42% | 709,506 |
| Aug 14, 2026 | $357.08 | $359.98 | $353.78 | $355.83 | -0.35% | 704,463 |
| Aug 13, 2026 | $354.33 | $358.55 | $349.33 | $357.08 | +1.34% | 810,129 |
| Aug 12, 2026 | $354.00 | $355.91 | $349.99 | $352.36 | -1.15% | 625,983 |
| Aug 11, 2026 | $354.00 | $359.10 | $354.00 | $356.46 | -0.14% | 403,314 |
| Aug 10, 2026 | $357.71 | $359.53 | $355.00 | $356.97 | -0.37% | 705,260 |
| Aug 7, 2026 | $357.51 | $360.60 | $354.61 | $358.30 | -0.68% | 928,749 |
| Aug 6, 2026 | $362.95 | $364.99 | $356.84 | $360.75 | +0.22% | 1,140,039 |
| Aug 5, 2026 | $356.96 | $360.60 | $355.22 | $359.97 | +0.93% | 657,210 |
| Aug 4, 2026 | $353.37 | $357.09 | $350.23 | $356.65 | -0.27% | 1,433,513 |
| Aug 3, 2026 | $362.04 | $366.32 | $356.12 | $357.63 | -0.81% | 1,950,091 |
| Jul 31, 2026 | $363.08 | $365.02 | $359.78 | $360.55 | -1.64% | 1,315,956 |
| Jul 30, 2026 | $367.19 | $370.49 | $358.49 | $366.57 | -2.81% | 4,227,739 |
| Jul 29, 2026 | $367.64 | $379.50 | $362.26 | $377.16 | -1.08% | 2,010,626 |
| Jul 28, 2026 | $370.00 | $382.34 | $367.17 | $381.26 | +3.84% | 1,508,086 |
| Jul 27, 2026 | $362.03 | $369.75 | $359.80 | $367.17 | +1.51% | 1,590,514 |
| Jul 24, 2026 | $355.93 | $362.61 | $355.65 | $361.70 | +1.66% | 784,967 |
| Jul 23, 2026 | $352.59 | $355.79 | $350.83 | $355.78 | +0.98% | 1,178,107 |
| Jul 22, 2026 | $359.65 | $359.97 | $350.96 | $352.33 | -1.97% | 1,813,204 |
| Jul 21, 2026 | $359.08 | $363.00 | $354.80 | $359.40 | -0.93% | 1,371,174 |
| Jul 20, 2026 | $364.87 | $366.00 | $361.11 | $362.78 | -1.21% | 1,074,054 |
| Jul 17, 2026 | $370.00 | $375.92 | $365.63 | $367.21 | -0.39% | 1,445,576 |
| Jul 16, 2026 | $358.23 | $368.64 | $356.56 | $368.63 | +3.80% | 1,017,911 |
| Jul 15, 2026 | $357.52 | $360.29 | $350.46 | $355.15 | -1.04% | 1,193,567 |
| Jul 14, 2026 | $364.29 | $365.78 | $358.40 | $358.89 | -2.30% | 1,168,289 |
| Jul 13, 2026 | $360.12 | $367.58 | $360.12 | $367.35 | +2.92% | 1,511,743 |
| Jul 10, 2026 | $357.55 | $360.00 | $353.79 | $356.94 | +0.39% | 998,592 |
| Jul 9, 2026 | $354.98 | $357.50 | $353.10 | $355.56 | -0.55% | 602,031 |
| Jul 8, 2026 | $360.00 | $361.13 | $357.00 | $357.51 | -0.64% | 641,695 |
| Jul 7, 2026 | $360.00 | $366.45 | $357.07 | $359.82 | +0.82% | 830,188 |
| Jul 6, 2026 | $356.71 | $357.18 | $351.38 | $356.91 | -0.15% | 1,217,995 |
| Jul 2, 2026 | $346.41 | $357.54 | $344.20 | $357.46 | +4.05% | 1,182,971 |
| Jul 1, 2026 | $327.83 | $347.27 | $327.83 | $343.56 | +3.58% | 1,913,702 |
| Jun 30, 2026 | $327.07 | $333.76 | $322.26 | $331.69 | +1.26% | 1,588,789 |
| Jun 29, 2026 | $324.97 | $330.43 | $323.41 | $327.57 | -0.34% | 1,387,364 |
| Jun 26, 2026 | $319.72 | $330.36 | $316.82 | $328.69 | +4.03% | 5,288,368 |
| Jun 25, 2026 | $324.49 | $328.46 | $315.78 | $315.95 | -2.93% | 1,744,244 |
| Jun 24, 2026 | $322.59 | $328.24 | $319.22 | $325.48 | +1.48% | 2,362,206 |
| Jun 23, 2026 | $318.29 | $323.57 | $316.69 | $320.74 | +2.27% | 2,626,904 |
| Jun 22, 2026 | $316.51 | $319.75 | $313.62 | $313.63 | -1.29% | 2,131,284 |
| Jun 18, 2026 | $327.86 | $328.00 | $317.48 | $317.74 | -2.74% | 2,382,854 |
| Jun 17, 2026 | $327.02 | $334.79 | $325.00 | $326.69 | -1.44% | 1,751,080 |
| Jun 16, 2026 | $330.80 | $333.15 | $329.13 | $331.45 | +0.59% | 1,751,362 |
| Jun 15, 2026 | $336.71 | $338.21 | $327.98 | $329.51 | -1.73% | 1,405,759 |
| Jun 12, 2026 | $335.00 | $338.20 | $330.81 | $335.31 | +0.04% | 1,377,924 |
| Jun 11, 2026 | $334.39 | $340.10 | $334.39 | $335.17 | -0.34% | 1,431,083 |
| Jun 10, 2026 | $334.48 | $340.76 | $331.00 | $336.33 | +1.43% | 1,749,501 |
| Jun 9, 2026 | $324.87 | $333.07 | $321.55 | $331.59 | +1.76% | 1,956,215 |
| Jun 8, 2026 | $325.49 | $328.83 | $323.78 | $325.85 | -0.82% | 1,470,276 |
| Jun 5, 2026 | $325.00 | $331.13 | $324.12 | $328.53 | +1.95% | 1,340,966 |
| Jun 4, 2026 | $321.17 | $327.90 | $318.81 | $322.24 | +2.10% | 1,579,758 |
| Jun 3, 2026 | $316.16 | $317.04 | $311.07 | $315.60 | -0.71% | 1,617,805 |
| Jun 2, 2026 | $317.58 | $319.35 | $312.34 | $317.86 | -0.80% | 1,051,567 |
| Jun 1, 2026 | $313.78 | $321.42 | $313.23 | $320.41 | +1.38% | 1,431,579 |
| May 29, 2026 | $317.77 | $317.83 | $314.54 | $316.06 | -0.70% | 2,856,922 |
| May 28, 2026 | $320.03 | $322.09 | $316.03 | $318.30 | -0.08% | 1,350,753 |
| May 27, 2026 | $321.09 | $325.60 | $317.49 | $318.54 | -0.23% | 1,073,666 |
| May 26, 2026 | $326.27 | $326.38 | $318.48 | $319.29 | -1.69% | 1,411,424 |
| May 22, 2026 | $323.28 | $325.40 | $320.65 | $324.78 | +0.17% | 928,978 |
| May 21, 2026 | $318.71 | $325.27 | $315.00 | $324.22 | +0.96% | 946,462 |
| May 20, 2026 | $323.60 | $323.60 | $316.90 | $321.15 | -0.78% | 1,479,325 |
| May 19, 2026 | $328.16 | $330.22 | $322.26 | $323.66 | -0.89% | 2,140,585 |
| May 18, 2026 | $317.51 | $328.48 | $317.51 | $326.57 | +2.95% | 1,455,601 |
| May 15, 2026 | $316.24 | $321.69 | $316.24 | $317.22 | +0.57% | 1,955,296 |
| May 14, 2026 | $311.61 | $317.26 | $311.61 | $315.41 | +1.45% | 1,844,874 |
| May 13, 2026 | $313.62 | $315.49 | $308.51 | $310.90 | -1.72% | 1,672,440 |
| May 12, 2026 | $313.89 | $317.59 | $310.63 | $316.35 | +1.37% | 1,622,713 |
| May 11, 2026 | $312.42 | $314.85 | $309.87 | $312.07 | -0.23% | 1,166,105 |
| May 8, 2026 | $313.00 | $314.06 | $309.22 | $312.79 | -0.26% | 1,179,163 |
| May 7, 2026 | $307.19 | $315.90 | $306.52 | $313.59 | +1.73% | 1,858,930 |
| May 6, 2026 | $316.41 | $317.49 | $306.87 | $308.27 | -2.00% | 1,476,880 |
| May 5, 2026 | $313.67 | $315.41 | $308.99 | $314.55 | -0.12% | 1,177,107 |
| May 4, 2026 | $309.93 | $316.56 | $308.57 | $314.92 | +1.09% | 1,382,072 |
| May 1, 2026 | $326.52 | $326.52 | $310.73 | $311.51 | -0.04% | 1,822,712 |
| Apr 30, 2026 | $312.43 | $314.02 | $307.02 | $311.65 | -3.36% | 2,614,635 |
| Apr 29, 2026 | $319.89 | $323.12 | $319.11 | $322.49 | +0.25% | 1,157,124 |
| Apr 28, 2026 | $326.73 | $328.95 | $320.52 | $321.68 | -0.65% | 1,312,170 |
| Apr 27, 2026 | $319.53 | $325.95 | $319.00 | $323.78 | +0.82% | 1,248,902 |
| Apr 24, 2026 | $322.42 | $323.79 | $318.64 | $321.14 | -0.75% | 761,208 |
| Apr 23, 2026 | $326.35 | $328.13 | $321.60 | $323.56 | -1.01% | 941,398 |
| Apr 22, 2026 | $333.80 | $334.92 | $324.28 | $326.86 | -2.52% | 1,281,855 |
| Apr 21, 2026 | $332.93 | $336.89 | $331.75 | $335.32 | +1.02% | 1,215,040 |
| Apr 20, 2026 | $331.45 | $334.35 | $330.91 | $331.95 | +0.05% | 792,190 |
| Apr 17, 2026 | $333.27 | $336.35 | $331.43 | $331.80 | -1.06% | 1,161,372 |
| Apr 16, 2026 | $329.87 | $337.98 | $328.27 | $335.34 | +2.21% | 1,350,022 |
| Apr 15, 2026 | $323.80 | $329.29 | $321.75 | $328.08 | +1.57% | 1,093,743 |
| Apr 14, 2026 | $321.75 | $324.43 | $320.95 | $323.02 | -0.73% | 1,270,493 |
| Apr 13, 2026 | $315.00 | $325.68 | $313.00 | $325.40 | +4.10% | 1,687,580 |
| Apr 10, 2026 | $323.16 | $323.29 | $307.81 | $312.57 | -3.94% | 2,414,200 |
| Apr 9, 2026 | $326.54 | $328.17 | $322.69 | $325.40 | -1.32% | 1,314,396 |
| Apr 8, 2026 | $322.47 | $330.93 | $321.58 | $329.76 | +2.26% | 1,397,630 |
| Apr 7, 2026 | $325.61 | $326.55 | $320.10 | $322.47 | -1.13% | 1,187,903 |
| Apr 6, 2026 | $321.21 | $327.27 | $321.21 | $326.17 | +0.94% | 867,136 |
| Apr 2, 2026 | $321.94 | $328.79 | $319.57 | $323.14 | +0.56% | 1,124,097 |
| Apr 1, 2026 | $321.88 | $325.39 | $318.00 | $321.34 | -0.45% | 1,081,439 |
| Mar 31, 2026 | $326.05 | $326.69 | $319.90 | $322.78 | -0.39% | 1,413,779 |
| Mar 30, 2026 | $316.45 | $325.38 | $315.66 | $324.06 | +3.32% | 1,216,798 |
| Mar 27, 2026 | $322.19 | $328.00 | $312.05 | $313.66 | -3.12% | 1,343,995 |
| Mar 26, 2026 | $320.83 | $326.60 | $320.83 | $323.77 | +0.72% | 1,211,514 |
| Mar 25, 2026 | $325.36 | $327.46 | $317.46 | $321.45 | -1.71% | 956,589 |
| Mar 24, 2026 | $327.56 | $328.84 | $324.96 | $327.03 | +0.33% | 1,180,369 |
| Mar 23, 2026 | $327.99 | $328.29 | $323.51 | $325.97 | +0.10% | 1,300,915 |
| Mar 20, 2026 | $317.24 | $326.56 | $317.24 | $325.63 | +2.73% | 2,408,689 |
| Mar 19, 2026 | $320.00 | $320.80 | $315.64 | $316.99 | -0.28% | 1,314,521 |
| Mar 18, 2026 | $319.67 | $320.30 | $314.80 | $317.88 | -1.03% | 984,224 |
| Mar 17, 2026 | $326.75 | $333.26 | $319.23 | $321.18 | -1.70% | 1,590,895 |
| Mar 16, 2026 | $322.60 | $327.26 | $320.13 | $326.75 | +1.66% | 1,067,757 |
| Mar 13, 2026 | $320.01 | $324.20 | $318.02 | $321.41 | +1.74% | 1,124,111 |
| Mar 12, 2026 | $316.00 | $323.26 | $313.81 | $315.91 | -0.31% | 1,866,445 |
| Mar 11, 2026 | $320.96 | $322.04 | $316.55 | $316.90 | -1.26% | 1,319,304 |
| Mar 10, 2026 | $332.22 | $332.22 | $320.44 | $320.96 | -3.57% | 1,412,489 |
| Mar 9, 2026 | $341.55 | $342.38 | $329.75 | $332.84 | -2.28% | 1,708,493 |
| Mar 6, 2026 | $337.37 | $341.46 | $334.09 | $340.60 | +0.54% | 1,187,690 |
| Mar 5, 2026 | $338.97 | $341.86 | $336.49 | $338.77 | -0.71% | 1,555,379 |
| Mar 4, 2026 | $337.42 | $344.65 | $337.37 | $341.18 | +0.62% | 2,026,515 |
| Mar 3, 2026 | $333.37 | $339.36 | $331.71 | $339.07 | +0.38% | 1,414,569 |
| Mar 2, 2026 | $332.02 | $340.32 | $331.96 | $337.80 | +0.69% | 1,270,670 |
| Feb 27, 2026 | $331.00 | $337.97 | $330.56 | $335.47 | +1.57% | 2,126,224 |
| Feb 26, 2026 | $325.50 | $332.00 | $325.16 | $330.27 | +1.73% | 1,062,012 |
| Feb 25, 2026 | $319.90 | $325.04 | $317.78 | $324.66 | +1.67% | 1,410,584 |
| Feb 24, 2026 | $316.96 | $321.30 | $312.58 | $319.33 | +1.27% | 1,471,217 |
| Feb 23, 2026 | $324.71 | $326.44 | $314.89 | $315.31 | -3.00% | 1,425,723 |
| Feb 20, 2026 | $325.94 | $327.20 | $323.18 | $325.07 | +0.24% | 1,264,997 |
| Feb 19, 2026 | $322.77 | $324.31 | $320.91 | $324.30 | +0.41% | 1,015,749 |
| Feb 18, 2026 | $322.93 | $326.41 | $321.03 | $322.98 | -0.91% | 1,172,298 |
| Feb 17, 2026 | $324.85 | $329.57 | $320.00 | $325.96 | +1.32% | 1,862,344 |
| Feb 13, 2026 | $317.95 | $322.39 | $313.16 | $321.70 | +2.29% | 2,220,162 |
| Feb 12, 2026 | $309.71 | $317.58 | $304.59 | $314.49 | +1.46% | 2,827,524 |
| Feb 11, 2026 | $315.32 | $317.91 | $307.01 | $309.97 | -2.50% | 2,960,101 |
| Feb 10, 2026 | $312.99 | $322.08 | $312.99 | $317.92 | +2.44% | 3,966,929 |
| Feb 9, 2026 | $340.76 | $343.92 | $309.13 | $310.34 | -9.27% | 3,885,872 |
| Feb 6, 2026 | $344.71 | $345.00 | $340.58 | $342.04 | -0.38% | 1,326,163 |
| Feb 5, 2026 | $350.32 | $353.68 | $343.19 | $343.36 | -1.96% | 1,421,893 |
| Feb 4, 2026 | $348.28 | $355.96 | $348.18 | $350.21 | +0.97% | 1,272,692 |
| Feb 3, 2026 | $347.31 | $351.15 | $343.20 | $346.84 | -0.79% | 1,266,326 |
| Feb 2, 2026 | $353.14 | $358.04 | $348.25 | $349.61 | -0.01% | 1,371,671 |
| Jan 30, 2026 | $346.96 | $351.80 | $341.17 | $349.64 | +1.95% | 1,938,787 |
| Jan 29, 2026 | $335.62 | $343.28 | $335.57 | $342.95 | +2.99% | 2,149,356 |
| Jan 28, 2026 | $329.41 | $335.23 | $327.53 | $333.00 | +0.68% | 1,341,240 |
| Jan 27, 2026 | $337.18 | $337.78 | $325.90 | $330.75 | -2.40% | 1,330,489 |
| Jan 26, 2026 | $339.32 | $342.00 | $336.92 | $338.87 | +0.05% | 1,156,661 |
| Jan 23, 2026 | $336.14 | $338.84 | $333.85 | $338.69 | +0.81% | 1,053,374 |
| Jan 22, 2026 | $331.99 | $336.58 | $330.30 | $335.96 | +0.96% | 1,370,714 |
| Jan 21, 2026 | $339.50 | $341.83 | $330.77 | $332.76 | -1.99% | 1,592,884 |
| Jan 20, 2026 | $341.38 | $342.97 | $337.44 | $339.50 | -1.27% | 1,645,543 |
| Jan 16, 2026 | $343.28 | $344.39 | $340.60 | $343.86 | -0.28% | 882,946 |
| Jan 15, 2026 | $346.00 | $347.06 | $342.70 | $344.84 | -0.34% | 915,883 |
| Jan 14, 2026 | $344.70 | $347.83 | $344.50 | $346.00 | +0.41% | 1,019,681 |
| Jan 13, 2026 | $348.88 | $350.70 | $343.23 | $344.59 | -1.68% | 1,028,408 |
| Jan 12, 2026 | $351.00 | $353.93 | $349.37 | $350.49 | -0.09% | 1,053,516 |
| Jan 9, 2026 | $351.41 | $353.36 | $350.12 | $350.80 | -0.33% | 678,434 |
| Jan 8, 2026 | $349.03 | $355.43 | $347.22 | $351.97 | +0.59% | 861,739 |
| Jan 7, 2026 | $348.13 | $353.16 | $342.92 | $349.92 | +0.07% | 1,390,772 |
| Jan 6, 2026 | $350.35 | $353.53 | $348.32 | $349.67 | -0.46% | 797,771 |
| Jan 5, 2026 | $340.91 | $352.16 | $339.39 | $351.29 | +2.04% | 992,717 |
| Jan 2, 2026 | $351.12 | $351.65 | $342.75 | $344.27 | -2.44% | 780,641 |
| Dec 31, 2025 | $356.96 | $356.96 | $352.82 | $352.88 | -1.01% | 453,298 |
| Dec 30, 2025 | $355.94 | $357.57 | $353.66 | $356.49 | -0.07% | 440,147 |
| Dec 29, 2025 | $356.66 | $358.55 | $355.40 | $356.73 | +0.02% | 433,180 |
| Dec 26, 2025 | $356.24 | $357.79 | $354.14 | $356.65 | 0.00% | 309,355 |
| Dec 24, 2025 | $355.00 | $358.14 | $354.02 | $356.65 | +0.22% | 283,851 |
| Dec 23, 2025 | $355.77 | $356.81 | $353.88 | $355.87 | +0.12% | 590,338 |
| Dec 22, 2025 | $348.87 | $356.77 | $348.00 | $355.46 | +1.55% | 827,026 |
| Dec 19, 2025 | $352.66 | $354.46 | $349.91 | $350.04 | -0.84% | 2,459,720 |
| Dec 18, 2025 | $350.70 | $354.06 | $350.70 | $353.02 | +0.28% | 980,137 |
| Dec 17, 2025 | $350.36 | $354.40 | $349.93 | $352.03 | +0.07% | 885,277 |
| Dec 16, 2025 | $352.84 | $354.72 | $351.04 | $351.80 | -0.65% | 1,121,356 |
| Dec 15, 2025 | $353.71 | $355.33 | $350.98 | $354.10 | +0.09% | 968,847 |
| Dec 12, 2025 | $348.64 | $354.12 | $347.39 | $353.79 | +1.84% | 1,074,319 |
| Dec 11, 2025 | $342.73 | $348.12 | $340.05 | $347.40 | +2.16% | 1,037,293 |
| Dec 10, 2025 | $346.26 | $346.42 | $336.43 | $340.05 | -1.77% | 1,300,292 |
| Dec 9, 2025 | $344.32 | $348.66 | $343.08 | $346.19 | +0.82% | 974,829 |
| Dec 8, 2025 | $343.23 | $344.55 | $341.03 | $343.39 | -0.52% | 874,985 |
| Dec 5, 2025 | $346.72 | $347.57 | $340.19 | $345.20 | -0.72% | 1,188,957 |
| Dec 4, 2025 | $344.45 | $347.99 | $344.45 | $347.71 | +0.95% | 690,803 |
| Dec 3, 2025 | $345.49 | $347.34 | $341.98 | $344.45 | -0.36% | 798,396 |
| Dec 2, 2025 | $351.04 | $351.66 | $345.54 | $345.70 | -1.56% | 982,943 |
| Dec 1, 2025 | $352.69 | $355.48 | $350.42 | $351.17 | -0.78% | 1,085,634 |
| Nov 28, 2025 | $352.12 | $355.62 | $351.49 | $353.92 | +0.37% | 400,095 |
| Nov 26, 2025 | $351.49 | $353.45 | $349.77 | $352.61 | +0.47% | 654,734 |
| Nov 25, 2025 | $344.06 | $351.50 | $342.80 | $350.96 | +1.82% | 692,590 |
| Nov 24, 2025 | $347.23 | $347.32 | $343.32 | $344.70 | -0.52% | 1,657,370 |
| Nov 21, 2025 | $346.00 | $349.70 | $344.15 | $346.51 | +0.18% | 1,967,949 |
| Nov 20, 2025 | $343.75 | $346.06 | $343.18 | $345.89 | +0.50% | 1,124,046 |
| Nov 19, 2025 | $348.36 | $349.98 | $339.17 | $344.17 | -1.25% | 1,112,002 |
| Nov 18, 2025 | $352.23 | $352.64 | $344.41 | $348.54 | -0.42% | 1,428,733 |
| Nov 17, 2025 | $350.00 | $353.00 | $347.27 | $350.02 | -0.03% | 1,609,302 |
| Nov 14, 2025 | $351.85 | $354.24 | $344.87 | $350.13 | -0.23% | 1,232,263 |
| Nov 13, 2025 | $349.94 | $352.99 | $347.28 | $350.94 | +0.24% | 1,183,640 |
| Nov 12, 2025 | $349.17 | $351.59 | $345.41 | $350.11 | +0.05% | 1,221,218 |
| Nov 11, 2025 | $346.74 | $350.43 | $344.64 | $349.93 | +1.47% | 789,595 |
| Nov 10, 2025 | $343.34 | $346.83 | $341.02 | $344.87 | -0.42% | 1,099,100 |
| Nov 7, 2025 | $340.94 | $348.18 | $339.01 | $346.32 | +1.86% | 1,500,572 |
| Nov 6, 2025 | $340.83 | $343.61 | $339.00 | $340.00 | -0.50% | 897,142 |
| Nov 5, 2025 | $344.21 | $346.76 | $341.70 | $341.70 | -0.73% | 1,344,778 |
| Nov 4, 2025 | $340.11 | $344.37 | $337.82 | $344.21 | +1.29% | 1,074,554 |
| Nov 3, 2025 | $339.42 | $340.37 | $331.14 | $339.84 | -0.25% | 1,474,811 |
| Oct 31, 2025 | $336.43 | $348.61 | $334.80 | $340.68 | +3.81% | 2,460,245 |
| Oct 30, 2025 | $328.07 | $330.71 | $326.51 | $328.19 | +0.65% | 2,212,681 |
| Oct 29, 2025 | $327.93 | $329.19 | $324.28 | $326.07 | -1.18% | 1,532,198 |
| Oct 28, 2025 | $335.21 | $335.21 | $329.00 | $329.96 | -2.05% | 1,212,822 |
| Oct 27, 2025 | $337.00 | $338.61 | $335.24 | $336.87 | -0.25% | 1,438,813 |
| Oct 24, 2025 | $340.50 | $342.33 | $337.34 | $337.73 | -1.06% | 842,209 |
| Oct 23, 2025 | $343.00 | $343.40 | $338.25 | $341.35 | -0.51% | 1,238,241 |
| Oct 22, 2025 | $343.32 | $344.29 | $340.51 | $343.10 | -0.10% | 1,189,537 |
| Oct 21, 2025 | $343.80 | $346.37 | $342.18 | $343.43 | -0.20% | 981,539 |
| Oct 20, 2025 | $347.22 | $347.22 | $341.40 | $344.11 | – | 935,111 |
Seasonality
AON return in each calendar month over the last 10 years, including dividends. The current month runs to the latest close.
| Year | Jan | Feb | Mar | Apr | May | Jun | Jul | Aug | Sep | Oct | Nov | Dec |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Average | 2.1% | 3.1% | -0.3% | -1.5% | 1.9% | 1.4% | 4.4% | 1.1% | -1.0% | 2.1% | 4.4% | -3.6% |
| Months up | 7 of 10 | 6 of 10 | 6 of 10 | 6 of 10 | 5 of 10 | 5 of 10 | 7 of 10 | 7 of 10 | 4 of 10 | 6 of 10 | 7 of 9 | 3 of 9 |
| 2026 | -0.9% | -4.1% | -3.8% | -3.4% | 1.7% | 4.9% | 8.7% | -10.6% | -13.9% | 16.2% | ||
| 2025 | 3.2% | 10.5% | -2.5% | -11.1% | 5.1% | -4.1% | -0.3% | 3.4% | -2.8% | -4.5% | 3.9% | -0.3% |
| 2024 | 2.8% | 5.9% | 5.6% | -15.3% | -0.1% | 4.2% | 11.9% | 4.8% | 0.7% | 6.0% | 6.9% | -8.3% |
| 2023 | 6.4% | -4.6% | 3.7% | 3.3% | -5.2% | 12.0% | -7.6% | 4.7% | -2.8% | -4.4% | 6.2% | -11.4% |
| 2022 | -7.9% | 5.7% | 11.5% | -11.4% | -4.3% | -2.2% | 8.1% | -4.0% | -4.1% | 5.3% | 9.5% | -2.6% |
| 2021 | -3.7% | 12.1% | 1.1% | 9.5% | 0.8% | -5.8% | 9.1% | 10.3% | -0.4% | 12.1% | -7.5% | 1.6% |
| 2020 | 6.0% | -5.6% | -20.7% | 4.9% | 14.1% | -2.2% | 6.8% | -2.5% | 3.2% | -10.6% | 11.3% | 3.1% |
| 2019 | 7.8% | 9.8% | -0.5% | 5.8% | -0.0% | 7.2% | -1.7% | 3.0% | -0.7% | 0.0% | 5.4% | 2.3% |
| 2018 | 6.4% | -1.3% | 0.0% | 1.8% | -1.8% | -1.9% | 4.9% | 1.7% | 5.6% | 1.8% | 5.7% | -12.0% |
| 2017 | 1.3% | 2.6% | 2.6% | 1.3% | 9.2% | 1.6% | 4.2% | 0.7% | 5.0% | -1.6% | -2.2% | -4.4% |